Technical basis for the small-scale production of black soldier fly, Hermetia illucens (L. 1758), meal as fish feed in Benin

Journal of Agriculture and Food Research

Philippe A. Lalèyè¹  Pamphile Agbohessou²  Rudy Caparros Megido³  Armel Gougbedji⁴  Frédéric Francis⁵ 

[1] Corresponding author. Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liege, Monseigneur Heylen, 8, 5030, Gembloux, Belgium.;Laboratory of Hydrobiology and Aquaculture, Faculty of Agronomics Sciences, University of Abomey-Calavi, 01 BP 526, Cotonou, Benin;Research Unit in Environmental and Evolutionary Biology, Institute of Life, Earth and Environment, University of Namur, 5000, Namur, Belgium;Functional and Evolutionary Entomology, Gembloux Agro-Bio Tech, University of Liege, 5030, Gembloux, Belgium;Laboratory of Hydrobiology and Aquaculture, Faculty of Agronomics Sciences, University of Abomey-Calavi, 01 BP 526, Cotonou, Benin;

关键词: Hermetia illucens;    Insect breeding;    Fish feeding;    Polyunsaturated fatty acid;    West Africa;   

DOI  :  

来源: DOAJ

【 摘 要 】

Promoting black soldier fly (BSF) rearing in Benin to replace fishmeal in fish diet could reduce fish production costs. This study aims to set up a breeding technique of BSF as a protein source. BSF reproduction has been carried out in sunlight. Two densities (8500 individuals/m3 and 10,500 individuals/m3) associated with 2 attractants (soybean and pineapple waste) were tested on imago egg-laying. A larvarium with a prepupae self-harvesting system was designed and its efficiency was evaluated by testing 3 densities of larval rearing (1 larva/g, 2 larva/g, 3 larva/g). Two diets, VGD (soybean meal ​+ ​euphorbia leaves and seeds ​+ ​colza oil) and FOD (soybean meal ​+ ​fish offal) were formulated to optimize polyunsaturated fatty acid profile of prepupae to meet nutritional requirements of tilapia. Best oviposition was obtained with 8500 individuals/m3 with pineapple waste and optimal larval load density was 2 larva/g. Prepupae fed with VGD accumulated C18:2n-6 (10.1%) which is essential for tilapia. Prepupae fed with FOD contained C20:5n-3 (2.20%), a fatty acid beneficial to humans. The lowest production cost of BSF meal was estimated at $1.84/Kg and was obtained with the FOD diet. BSF can easily be reared under local conditions throughout the year. Its nutritional qualities are very interesting to meet Nile tilapia requirements.

【 授权许可】

Unknown